Accurate Altitude and Pressure Data — In Any Environment
Equalize Pressure and Protect Sensors Without Sacrificing Measurement Accuracy
Gore pressure vent membranes for portable electronics allow barometric pressure, altitude, and environmental sensors to measure the outside atmosphere accurately — while blocking liquid water, humidity, and particulate contamination from reaching the sensor cavity.
Pressure equalization ePTFE membranes for altitude sensors, barometers, and environmental sensors in consumer and medical portable devices. These membranes create a breathable but water-resistant barrier over the sensor port, allowing static pressure to equalize between the device interior and the external atmosphere for accurate absolute pressure readings, while preventing the liquid ingress and humidity condensation that degrades sensor electronics and causes measurement drift. Available for standard smartwatch and wristband port geometries as well as custom formats for medical and industrial portable instruments.
Why Choose Gore Portable Electronic Pressure Vents?
Accurate Pressure Sensing Through the Membrane
Gore's ePTFE pressure vent membranes allow atmospheric pressure to equilibrate across the membrane rapidly enough for accurate static pressure measurement by the barometric sensor beneath. This enables correct altitude calculation in GPS watches and fitness trackers, accurate weather prediction in weather stations, and precise pressure monitoring in medical pulse oximeters and portable spirometers.
IP67/IP68 Water and Humidity Protection
The hydrophobic ePTFE surface repels liquid water at IP67 and IP68 immersion levels while remaining permeable to gas-phase pressure equalization. This combination is not achievable with open sensor ports or conventional hydrophobic coatings. Sensors behind Gore pressure vents maintain calibration even after submersion, sweating, and rain exposure.
10 ATM Rating for Swim-Proof Wearables
Gore's latest pressure vent series includes variants rated to 10 ATM (100 metres equivalent), enabling smartwatch and sports watch designs that meet the most demanding water resistance marketing claims. These vents maintain pressure equalization function during surface swimming and shallow diving scenarios while preventing water intrusion into the barometric sensor port.
Technical Specifications
- Membrane Material
- Expanded PTFE (ePTFE)
- Ingress Protection
- IP67 / IP68 / 10 ATM (series dependent)
- Pressure Equalization
- Rapid static pressure equilibration
- Liquid Repellency
- Hydrophobic — water and aqueous solutions
- Mounting Method
- Adhesive-backed for port application
- Membrane Thickness
- Ultra-thin (sub-mm, application dependent)
- Compatible Sensors
- Barometric MEMS, altitude, environmental
- Supply Format
- Discrete adhesive / reel for automation
Applications
- GPS smartwatch and multisport watch barometric altitude sensors
- Fitness tracker and activity monitor environmental pressure ports
- Portable weather station and outdoor navigation instrument sensor ports
- Medical portable pulse oximeter and spirometer pressure transducer protection
- Industrial portable gas detector and environmental monitor sensor ports
- 10 ATM swim-proof smartwatch barometric pressure sensor integration
Industries Served
Part Numbers
Reference these part numbers when requesting a quote. Contact RSTECH Electronics for pricing, availability, and samples in Israel.
Part numbers sourced from gore.com. Custom configurations and additional variants may be available — contact RSTECH for details.
Frequently Asked Questions
Does the pressure vent membrane affect the accuracy of the barometric sensor?
Gore pressure vent membranes are designed to allow rapid gas-phase pressure equalization with minimal lag. For static pressure measurement (altitude, weather), the membrane presents negligible resistance. For fast-response differential pressure applications, the membrane response time should be evaluated against sensor requirements — contact RSTECH for application-specific guidance.
What is the difference between pressure vents and acoustic vents?
Pressure vents are optimized for slow gas equalization — they allow static atmospheric pressure to equilibrate for barometric sensing. Acoustic vents are optimized for fast pressure-wave transmission at audio frequencies for microphone and speaker applications. While both use ePTFE membranes, the pore structure, thickness, and membrane area are optimized differently. Do not substitute one for the other.
Are 10 ATM pressure vents suitable for diving watches?
10 ATM (100 m equivalent) ratings cover surface swimming and occasional submersion. Actual diving watches (saturation diving equipment) require significantly higher pressure ratings and are a different product category. For recreational diving watch applications (typically up to 200 m), contact RSTECH to discuss the appropriate Gore pressure vent specification.
Can Gore pressure vents be used in medical-grade portable devices?
Yes. Gore ePTFE is a widely used biomaterial with an established safety profile. For medical device applications, RSTECH can provide material certifications and biocompatibility documentation relevant to your regulatory submission. Contact us early in the design process to ensure supply chain and documentation alignment.
Ready to source Portable Electronic Pressure Vents in Israel?
Contact RSTECH Electronics — your authorized Gore representative in Israel.